ngk r5674-10, spark plug, racing, tapered seat, 14mm thread, .460 in. reach, projected tip, non-resistor, each

NGK Racing Series Plugs are Engineered to Withstand the Harshest Engine Conditions. NGK's V-Power Plugs Feature a Unique V-Cut in the Center Electrode that Directs the Spark to the Edge of the Electrode, Helping the Spark Develop More Rapidly, Increasing Ignitability and Reducing Quenching. Special Insulator Nose Configurations Improve Throttle Response. Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties. Corrugated Ribs Prevent Flashover. Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer. Copper Core Aids in Heat Removal. Triple Seals Prevent Leakage. Plug Specifications: Thread Size: 14mm. Hex Size: 15.875mm. Reach: 11.2mm. Seat Type: Tapered. Terminal Type: Solid. Resistor: No.